CN114618102A

CN114618102A - Microcapsule extinguishing device

Info

Publication number: CN114618102A
Application number: CN202210312182.0A
Authority: CN
Inventors: 贾蕊; 张克润; 贾婷; 于敏; 夏仁红; 刘巧; 王若溪
Original assignee: Jiangsu Urban and Rural Construction College
Current assignee: Jiangsu Urban and Rural Construction College
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-06-14
Anticipated expiration: 2042-03-28
Also published as: CN114618102B

Abstract

The invention discloses a microcapsule fire extinguishing device, which relates to the field of fire extinguishing and comprises a shell, wherein two sides of the shell are fixedly connected with a spraying nozzle, flame-retardant powder is filled in the two sides of the shell, a one-way valve is arranged in the spraying nozzle, the middle part of the shell is fixedly connected with a generating shell, and two sides of the inner wall of the generating shell are fixedly connected with springs; according to the invention, through the cooperation among the medicament box, the positioning rod, the trigger plate, the expansion air bag, the sealing membrane and the spring, the positioning rod is pulled to rapidly trigger the fire extinguishing mechanism, so that the trigger plate extrudes the expansion air bag, compressed gas enters the medicament box and breaks the sealing membrane, and chemical medicaments stored in the medicament box are contacted, and at the moment of breaking, the gas can also act on the chemical reagents and blow the chemical reagents to the opposite side, so that the chemical reagents and the sealing membrane can be better mixed, and the fire extinguishing efficiency of the device is improved.

Description

Microcapsule extinguishing device

Technical Field

The invention relates to the technical field of fire extinguishing, in particular to a microcapsule fire extinguishing device.

Background

Among the various disasters, fire is one of the main disasters that most often and most commonly threaten public safety and social development, and common fire extinguishing substances include dry powder extinguishing agents: such as ammonium phosphate salt dry powder, sodium bicarbonate dry powder, D-type dry powder, ultrafine dry powder with smaller particle size, and the like; liquid fire extinguishing agent mainly containing water or other liquid: such as water, aqueous solutions, foams, biological protein fire extinguishing agents, superfine water mist fire extinguishing agents and the like; gas-based fire extinguishing agent: such as inert gas fire extinguishing agents like CO2, N2, IG541, heptafluoropropane fire extinguishing agents and recently rapidly developing hot aerosol fire extinguishing agents. The fire extinguishing agents have specific use occasions, but the volumes are huge, a large amount of storage space is needed, the spraying distance is limited, close-range fire extinguishing is needed, and certain potential safety hazards exist.

Along with the progress of polymer science, various polymerization mechanisms and polymerization technologies are produced at the same time, the microcapsule technology is applied to the field of fire fighting, at present, the internal structure of the existing microcapsule fire extinguishing device is complex, substances required for fire extinguishing cannot be generated in a short time, the sensitivity is poor, and the fire extinguishing effect is general.

Disclosure of Invention

The invention aims to solve the defects that the prior art has poor sensitivity, cannot generate substances required for fire extinguishing in a short time and has a common fire extinguishing effect, and provides a microcapsule fire extinguishing device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a microencapsulated fire-extinguishing device comprising:

the device comprises a shell, wherein two sides of the shell are both fixedly connected with a spraying nozzle, and are both filled with flame-retardant powder, one-way valves are arranged inside the spraying nozzle, a generating shell is fixedly connected to the middle part of the shell, springs are fixedly connected to two sides of the inner wall of the generating shell, the other end of each spring is fixedly connected with a gas generating assembly, and the gas generating assembly is used for generating chemical agents capable of generating a large amount of gas;

the trigger assembly is connected with the side wall of the generating shell in a sealing and sliding manner and is used for enabling different chemical agents in the gas generating assembly to start reaction;

the extrusion assembly is connected with the interior of the shell in a sealing and sliding manner and is used for converting gas pressure into driving force so that the flame-retardant powder is sprayed outwards;

stir the subassembly, the extrusion subassembly rotates with the extrusion subassembly lateral wall to be connected, stirs the subassembly and is used for stirring fire-retardant powder at the promotion in-process, reduces the propulsion resistance, improves and sprays the effect.

Preferably, gas production subassembly includes the medicament box, medicament box and spring fixed connection, the equal fixedly connected with seal membrane in one side that the medicament box is close to each other, two edge between the medicament box all pegs graft and has the locating lever, the locating lever other end runs through and takes place the shell lateral wall, and the locating lever takes place shell sealing sliding connection, locating lever outer end fixedly connected with pull ring.

Preferably, the arc rotary groove has all been seted up to medicament box both sides, and the arc rotary groove in both sides sets up along taking place shell axis symmetry, the equal fixedly connected with slider in locating lever both sides, two the slider respectively with two upper and lower arc rotary groove inner wall sliding connection, and the slider width equals with arc rotary groove internal diameter.

Preferably, the two medicament boxes are symmetrically arranged along the central axis of the generating shell, and the arc-shaped rotary groove formed between the upper medicament box and the lower medicament box is reversely arranged.

Preferably, trigger the subassembly including triggering the board, trigger board and locating lever lateral wall fixed connection, take place all fixedly connected with inflation gasbag all around the shell inner wall, and inflation gasbag and trigger the laminating mutually, the homonymy the inflation gasbag is linked together with homonymy medicament box inner chamber, and every inflation gasbag is three with the intercommunication department of medicament box.

Preferably, the volume of the gas filled in the inflatable air bag is larger than the volume of the gas required by tearing the sealing film, the shape of the trigger plate is the same as that of the outer shell of the medicament box, and the trigger plate is attached to the side wall of the medicament box.

Preferably, the extrusion assembly comprises an extrusion plate, the extrusion plate is connected with the inner cavity of the shell in a sliding mode in a sealing mode, the extrusion plate is attached to the side wall of the shell, one side, close to the eruption nozzle, of the extrusion plate is annularly provided with an insertion hole, and a sealing plate is fixedly connected inside the insertion hole.

Preferably, the two sides of the inner cavity of the shell are annularly provided with plug rods, one side of each plug rod, which is close to the extrusion plate, is in a tip shape, the positions of the plug rods are aligned with the sealing plate, and the gas pressure generated inside the generation shell is smaller than the pressure required by the plug rods to pierce the sealing plate.

Preferably, a limiting rod is fixedly connected between the inner side wall of the generating shell and the inner wall of the shell, the limiting rod is in sealing sliding connection with the extrusion plate, and the side walls of the insertion rods are provided with convex thorns at equal intervals.

Preferably, the stirring assembly comprises a rotating shaft, the rotating shaft is rotatably connected with the side wall of the trigger plate, one end of the rotating shaft, which is close to the generating shell, is fixedly connected with a driving blade, the side wall of the other end of the rotating shaft is fixedly connected with a helical blade, and the length of the other end of the rotating shaft is smaller than the distance from the generating shell to the hair spray nozzle.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the matching among the medicament box, the positioning rod, the trigger plate, the expansion air bag, the sealing membrane and the spring, the sealing membrane is broken in the process of extruding the expansion air bag, so that chemical medicaments stored in the medicament box are contacted, and gas can also act on the chemical reagents and blow the chemical reagents to the opposite side, so that the chemical medicaments are better mixed, and the fire extinguishing efficiency of the device is improved.

2. According to the invention, through the matching among the extrusion plate, the insertion rod, the sealing plate and the spraying nozzles, the flame-retardant powder is sprayed outwards from the spraying nozzles at two sides by utilizing the driving force generated by gas pressure, and the insertion rod can puncture the sealing plate, so that carbon dioxide gas is sprayed outwards along with the rest flame-retardant powder, and the fire extinguishing effect of the device is further improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a microcapsule fire extinguishing apparatus according to the present invention;

FIG. 2 is a schematic view of the internal structure of the casing of the microcapsule fire extinguishing apparatus according to the present invention;

FIG. 3 is a partial structural view of a housing of a microcapsule fire extinguishing apparatus according to the present invention;

FIG. 4 is an enlarged schematic view of the area A in FIG. 3 of a microcapsule fire extinguishing apparatus according to the present invention;

FIG. 5 is a schematic diagram of a half-sectional structure of a microcapsule fire extinguishing apparatus according to the present invention;

FIG. 6 is a schematic diagram of the internal structure of the medicament box of the microcapsule fire extinguishing apparatus provided by the invention;

FIG. 7 is a schematic side view of a microcapsule fire extinguishing apparatus according to the present invention;

fig. 8 is an enlarged structural view of the area B in fig. 7 of a microcapsule fire extinguishing apparatus according to the present invention.

In the figure: 1. a housing; 2. a hair spray nozzle; 3. a crust occurs; 31. a spring; 4. a gas generation assembly; 41. a kit of medicaments; 411. an arc-shaped rotary groove; 42. a sealing film; 43. positioning a rod; 431. a slider; 44. a pull ring; 5. a trigger component; 51. a trigger plate; 52. inflating the balloon; 6. an extrusion assembly; 61. a pressing plate; 62. a sealing plate; 63. a plug rod; 64. a limiting rod; 7. an agitation assembly; 71. a rotating shaft; 72. a driving blade; 73. a helical blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, 2 and 5, a microcapsule fire extinguishing apparatus includes:

the device comprises a shell 1, wherein both sides of the shell 1 are fixedly connected with a eruption nozzle 2, both sides of the shell 1 are filled with flame retardant powder, one-way valves are arranged in the eruption nozzle 2, the middle part of the shell 1 is fixedly connected with a generation shell 3, both sides of the inner wall of the generation shell 3 are fixedly connected with springs 31, the other ends of the springs 31 are fixedly connected with a gas generation assembly 4, and the gas generation assembly 4 is used for containing chemical agents capable of generating a large amount of gas;

the trigger component 5 is connected with the side wall of the generating shell 3 in a sealing and sliding manner, and the trigger component 5 is used for enabling different chemical agents in the gas generating component 4 to start to react;

the extrusion assembly 6 is connected with the interior of the shell 1 in a sealing and sliding mode, and the extrusion assembly 6 is used for converting gas pressure into driving force so that the flame-retardant powder is sprayed outwards;

stir subassembly 7, extrusion subassembly 6 rotates with the 6 lateral walls of extrusion subassembly to be connected, stirs subassembly 7 and is used for stirring fire-retardant powder at the promotion in-process, reduces the propulsion resistance, improves and sprays the effect.

Referring to fig. 7, wherein the gas generating assembly 4 comprises a medicament box 41, the medicament box 41 is fixedly connected with the spring 31, one side of the medicament box 41, which is close to each other, is fixedly connected with a sealing membrane 42, a positioning rod 43 is inserted in the edge between the two medicament boxes 41, the other end of the positioning rod 43 penetrates through the side wall of the generating shell 3, the positioning rod 43 is connected with the generating shell 3 in a sealing and sliding manner, and the outer end of the positioning rod 43 is fixedly connected with a pull ring 44;

referring to fig. 4 and 8, arc-shaped rotating slots 411 are formed in both sides of the medicament box 41, the arc-shaped rotating slots 411 on both sides are symmetrically arranged along the central axis of the generating shell 3, sliding blocks 431 are fixedly connected to both sides of the positioning rod 43, the two sliding blocks 431 are respectively connected with the inner walls of the upper arc-shaped rotating slot 411 and the lower arc-shaped rotating slot 411 in a sliding manner, and the width of the sliding block 431 is equal to the inner diameter of the arc-shaped rotating slot 411;

referring to fig. 4, two medicament boxes 41 are symmetrically arranged along the central axis of the generating shell 3, and an arc-shaped rotating groove 411 arranged between the upper medicament box 41 and the lower medicament box 41 is reversely arranged;

through the arrangement of the structure, the device can keep good stability when not in use by utilizing the clamping sliding connection between the arc-shaped rotating groove 411 and the sliding block 431, the damage to the device caused by shaking generated in the transportation process is effectively avoided, the whole device has good safety measures, and the practicability of the device is improved; when putting out a fire immediately, rotate both sides locating lever 43 for the slider 431 breaks away from arc rotating groove 411, and draw locating lever 43 outwards, make it break away from between two medicine boxes 41, under the rebound effect of spring 31, both sides medicine box 41 will be in the state of being close to, and under this repeated rebound effect, can also make the inside medicament of both sides medicine box 41 take place to rock, make the both can be even dispersion inside medicine box 41, so that the better contact reaction that carries on of follow-up two.

Referring to fig. 7 and 8, the triggering assembly 5 includes a triggering plate 51, the triggering plate 51 is fixedly connected with the side wall of the positioning rod 43, the expansion air bags 52 are fixedly connected around the inner wall of the generating shell 3, the expansion air bags 52 are attached to the triggering plate 51, the expansion air bags 52 on the same side are communicated with the inner cavity of the medicament box 41 on the same side, and three communication positions of each expansion air bag 52 and the medicament box 41 are provided;

referring to fig. 8, wherein the volume of the gas filled in the inflatable balloon 52 is larger than the volume of the gas required for tearing the sealing film 42, the shape of the trigger plate 51 is the same as the shape of the housing of the medicine box 41, and the trigger plate 51 is attached to the side wall of the medicine box 41;

through the arrangement of the structure, in the process of pulling the positioning rod 43, the trigger plate 51 is driven to synchronously move outwards, the expansion air bag 52 is extruded to be contracted, so that the internal pressure of the expansion air bag 52 is increased, the expansion air bag 52 is communicated with the inner cavity of the medicament box 41, the compressed gas enters the medicament box 41, and the communication positions of each expansion air bag 52 and the medicament box 41 are three, so that the gas can be rapidly introduced into the medicament box 41, the reaction time of the device is reduced, the fire extinguishing efficiency of the device is improved, after the gas enters the medicament box 41, the sodium carbonate stored in the upper medicament box 41 and the dilute hydrochloric acid stored in the lower medicament box 41 are blown firstly, so that the sodium carbonate and the dilute hydrochloric acid can be uniformly dispersed in the medicament box 41, and the condensation and precipitation are avoided, the sealing film 42 is broken by the continuous filling of the gas, so that the chemical agents stored in the two agent boxes 41 are contacted, and at the moment of breaking, the gas can act on the chemical agents and blow the chemical agents to the opposite side, so that the chemical agents can be better mixed, and the device is thrown to a fire disaster, so that the fire disaster can be extinguished from a farther place, the potential safety hazard of the traditional close-range fire extinguishing is avoided, the safety performance of the device is improved, and in the process of throwing out the device to rotate, the two chemical agents are fully mixed and reacted; in this reaction process, because the device is under the environment of high temperature, consequently can also more quick catalytic reaction for take place the inside a large amount of carbon dioxide gas of production that can be rapid of shell 3, regard as this as the drive can be fast and effectual outwards spray the fire-retardant powder of casing 1 intussuseption, thereby improved the device's fire extinguishing efficiency, and the device simple structure, the volume is less, portable, it is more convenient to use.

Referring to fig. 2 and 5, the extrusion assembly 6 includes an extrusion plate 61, the extrusion plate 61 is connected with the inner cavity of the housing 1 in a sealing and sliding manner, the extrusion plate 61 is attached to the side wall of the generation housing 3, an insertion hole is annularly formed in one side of the extrusion plate 61 close to the hair spray nozzle 2, and a sealing plate 62 is fixedly connected inside the insertion hole;

referring to fig. 2 and 5, wherein, the two sides of the inner cavity of the housing 1 are both provided with the insertion rod 63 in a ring shape, one side of the insertion rod 63 close to the extrusion plate 61 is provided with a tip shape, and the insertion rod 63 is aligned with the sealing plate 62, and the gas pressure generated inside the generating shell 3 is smaller than the pressure required by the insertion rod 63 to pierce the sealing plate 62;

through the arrangement of the structure, after a large amount of carbon dioxide gas is generated in the shell 3, the extrusion plate 61 is pushed to slide towards the two sides of the shell 1, so that the extrusion plate 61 is in contact with the flame-retardant powder filled in the shell 1, the flame-retardant powder is sprayed out from the two side spray nozzles 2 under the action of atmospheric pressure, the insertion rod 63 is finally in contact with the sealing plate 62 along with the sliding of the extrusion plate 61, the sealing plate 62 is punctured under the thrust action of the extrusion plate 61, so that the carbon dioxide gas generated in the shell 3 enters the spray nozzles 2 and is sprayed out along with the residual flame-retardant powder, the spraying can be performed in a larger range, the density of the carbon dioxide gas is higher than that of air sealing, and after the carbon dioxide gas is sprayed out, the carbon dioxide gas is attached to the surface of a combustion object, so that the air and the combustion object are blocked, thereby realizing the fire extinguishing effect; and the fire extinguishing component that exists inside the fire-retardant powder will catch the free radical that flame burns rapidly to can restrain the burning of flame, and finally make flame extinguish, fire-retardant powder has the effect of strong stifling to the combustion surface moreover, thereby can be more quick make flame extinguish.

Referring to fig. 2, a limiting rod 64 is fixedly connected between the inner side wall of the generating shell 3 and the inner wall of the shell 1, the limiting rod 64 is in sealing sliding connection with the extrusion plate 61, and the side walls of the insertion rods 63 are provided with convex thorns at equal intervals;

through the setting of above-mentioned structure, can play spacing gliding effect to stripper plate 61, ensure that stripper plate 61 can slide along the straight line in casing 1, stability when with this improved stripper plate 61 and remove, and be provided with protruding thorn at the peg graft pole 63 lateral wall, at first can improve the area that closing plate 62 was punctured, secondly can also play the effect of breaing up to the fire-retardant powder of casing 1 inside, make fire-retardant powder can be more even outside eruption, thereby the device's fire extinguishing effect has been improved.

Referring to fig. 2, the stirring assembly 7 includes a rotating shaft 71, the rotating shaft 71 is rotatably connected to a side wall of the trigger plate 51, one end of the rotating shaft 71 close to the generating casing 3 is fixedly connected to a driving blade 72, the other side wall of the rotating shaft 71 is fixedly connected to a helical blade 73, and the length of the other end of the rotating shaft 71 is smaller than the distance from the generating casing 3 to the hair spray nozzle 2;

through the setting of above-mentioned structure, at the gliding in-process in stripper plate 61 to both sides, it is close to the driving vane 72 that takes place shell 3 one end and set up, will take place to rotate under gas pressure and the effect that gas flows, drive pivot 71 with this and rotate, thereby make helical blade 73 take place to rotate, and then can stir the inside fire-retardant powder of casing 1, avoid fire-retardant powder the condition that mutual adhesion blockked up eruption to appear, make the fire-retardant powder of eruption more even, thereby the effect of fire-retardant powder eruption has been improved, and then the device's fire extinguishing effect has been improved.

Referring to fig. 1 to 8, in the invention, when fire is needed to be extinguished, the positioning rods 43 on both sides are rotated to separate the sliding block 431 from the arc-shaped rotating groove 411, and the positioning rods 43 are pulled outwards to separate from between the two medicament boxes 41, under the resilience action of the spring 31, the medicament boxes 41 on both sides are in a close state, and under the repeated resilience effect, the medicament in the medicament boxes 41 on both sides can be shaken to be uniformly dispersed in the medicament boxes 41, so that the subsequent contact reaction between the two can be better carried out;

and in the process of pulling the positioning rod 43, the trigger plate 51 is driven to synchronously move outwards to extrude the expansion airbag 52 and contract the expansion airbag 52, so that the internal pressure of the expansion airbag 52 is increased, because the expansion airbag 52 is communicated with the inner cavity of the medicine box 41, the part of compressed gas enters the medicine box 41, firstly, the sodium carbonate stored in the upper medicine box 41 and the dilute hydrochloric acid stored in the lower medicine box 41 are blown so that the sodium carbonate and the dilute hydrochloric acid can be uniformly dispersed in the medicine box 41, the coagulation and precipitation are avoided, and the sealing membrane 42 is finally broken by filling the gas so that the chemical agents stored in the two medicine boxes 41 are contacted, and at the moment of breaking, the gas can act on the chemical agents and blow the chemical agents to the opposite side so as to better mix the two, the device is thrown to the fire, so that the fire can be extinguished from a farther place, the potential safety hazard existing in the traditional close-range fire extinguishing is avoided, in addition, the two chemical reagents can be fully mixed and reacted in the process of throwing out the device for rotation, and the device can also perform faster catalytic reaction because the device is in a high-temperature environment, so that a large amount of carbon dioxide gas can be rapidly generated in the generating shell 3;

after a large amount of carbon dioxide gas is generated inside the shell 3, the extrusion plate 61 is pushed to slide towards the two sides of the shell 1, so that the extrusion plate 61 is in contact with the flame-retardant powder filled in the shell 1, the flame-retardant powder is sprayed out from the two side spray nozzles 2 under the action of atmospheric pressure, the extrusion plate 61 slides, finally the insertion rod 63 is in contact with the sealing plate 62, the sealing plate 62 is punctured under the thrust action of the extrusion plate 61, so that the carbon dioxide gas inside the shell 3 enters the spray nozzles 2 and is sprayed out along with the residual flame-retardant powder, the spraying can be carried out in a wider range, the density of the carbon dioxide gas is higher than that of air sealing, after the carbon dioxide gas is sprayed out, the carbon dioxide gas is attached to the surface of a combustion object, so that the air and the combustion object are blocked, and the flame-retardant powder covers the combustion surface, thereby realizing the fire extinguishing effect; and at the gliding in-process of stripper plate 61 to both sides, it is close to the drive blade 72 that takes place shell 3 one end and set up, will take place to rotate under gas pressure and the effect that gas flows to this drives pivot 71 and rotates, thereby make helical blade 73 take place to rotate, and then can stir the inside fire-retardant powder of casing 1, avoid fire-retardant powder the condition that mutual adhesion blockked up eruption to appear, make the fire-retardant powder of eruption more even, thereby the effect of fire-retardant powder eruption has been improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A microencapsulated fire extinguishing apparatus, comprising:

the flame-retardant plastic shell comprises a shell (1), wherein both sides of the shell (1) are fixedly connected with a spraying nozzle (2), both sides of the shell (1) are filled with flame-retardant powder, one-way valves are arranged inside the spraying nozzle (2), the middle part of the shell (1) is fixedly connected with a generating shell (3), both sides of the inner wall of the generating shell (3) are fixedly connected with springs (31), the other ends of the springs (31) are fixedly connected with gas generating assemblies (4), and the gas generating assemblies (4) are used for containing chemical agents capable of generating a large amount of gas;

the trigger assembly (5), the trigger assembly (5) and the side wall of the generating shell (3) are in sealed sliding connection, and the trigger assembly (5) is used for enabling different chemical agents in the gas generating assembly (4) to start reaction;

the extrusion assembly (6) is connected with the interior of the shell (1) in a sealing and sliding mode, and the extrusion assembly (6) is used for converting gas pressure into driving force so that the flame-retardant powder is sprayed outwards;

stir subassembly (7), extrusion subassembly (6) are rotated with extrusion subassembly (6) lateral wall and are connected, stir subassembly (7) and are used for stirring fire-retardant powder at the promotion in-process, reduce the propulsion resistance, improve and spray the effect.

2. The microcapsule fire extinguishing device according to claim 1, wherein the gas generating assembly (4) comprises medicament boxes (41), the medicament boxes (41) are fixedly connected with springs (31), one sides of the medicament boxes (41) close to each other are fixedly connected with sealing films (42), positioning rods (43) are inserted into the edges between the two medicament boxes (41), the other ends of the positioning rods (43) penetrate through the side walls of the generating shells (3), the generating shells (3) are connected in a sealing and sliding manner, and pull rings (44) are fixedly connected to the outer ends of the positioning rods (43).

3. The microcapsule fire extinguishing device according to claim 2, wherein the medicament box (41) is provided with arc-shaped rotating grooves (411) on both sides, the arc-shaped rotating grooves (411) on both sides are symmetrically arranged along the central axis of the generating shell (3), the positioning rod (43) is fixedly connected with sliding blocks (431) on both sides, the two sliding blocks (431) are respectively connected with the inner walls of the upper and lower arc-shaped rotating grooves (411) in a sliding manner, and the width of the sliding blocks (431) is equal to the inner diameter of the arc-shaped rotating grooves (411).

4. The microcapsule fire extinguishing device according to claim 3, wherein the two medicine cartridges (41) are symmetrically arranged along the central axis of the generating shell (3), and the arc-shaped rotary groove (411) formed between the upper medicine cartridge (41) and the lower medicine cartridge (41) is reversely arranged.

5. The microcapsule fire extinguishing device according to claim 4, wherein the trigger assembly (5) comprises a trigger plate (51), the trigger plate (51) is fixedly connected with the side wall of the positioning rod (43), the periphery of the inner wall of the generating shell (3) is fixedly connected with expansion air bags (52), the expansion air bags (52) are attached to the trigger plate (51), the expansion air bags (52) are communicated with the inner cavity of the medicine box (41) on the same side, and the number of the communication positions of each expansion air bag (52) and the medicine box (41) is three.

6. The microcapsule fire extinguishing apparatus according to claim 5, wherein the volume of gas filled in the inflatable bladder (52) is larger than the volume of gas required for tearing the sealing film (42), the shape of the trigger plate (51) is the same as the shape of the housing of the medicine cartridge (41), and the trigger plate (51) is attached to the side wall of the medicine cartridge (41).

7. The microcapsule fire extinguishing device according to claim 6, wherein the extrusion assembly (6) comprises an extrusion plate (61), the extrusion plate (61) is connected with the inner cavity of the shell (1) in a sealing and sliding manner, the extrusion plate (61) is attached to the side wall of the generation shell (3), one side of the extrusion plate (61) close to the nozzle (2) is annularly provided with a plug hole, and a sealing plate (62) is fixedly connected inside the plug hole.

8. The microcapsule fire extinguishing apparatus according to claim 7, wherein the housing (1) is provided with a plug rod (63) at both sides of the inner cavity, the plug rod (63) is disposed in a tip shape at a side close to the pressing plate (61), and the plug rod (63) is aligned with the sealing plate (62), and the pressure of the gas generated inside the generating shell (3) is less than the pressure required for the plug rod (63) to pierce the sealing plate (62).

9. The microcapsule fire extinguishing device according to claim 8, wherein a limiting rod (64) is fixedly connected between the inner side wall of the generating shell (3) and the inner wall of the housing (1), the limiting rod (64) is connected with the extrusion plate (61) in a sealing and sliding manner, and the side wall of the insertion rod (63) is provided with protruding spines at equal intervals.

10. A microcapsule fire extinguishing apparatus according to claim 9, wherein the stirring assembly (7) comprises a rotating shaft (71), the rotating shaft (71) is rotatably connected with the side wall of the trigger plate (51), one end of the rotating shaft (71) close to the generating casing (3) is fixedly connected with a driving blade (72), the other end of the rotating shaft (71) is fixedly connected with a helical blade (73), and the length of the other end of the rotating shaft (71) is less than the distance from the generating casing (3) to the spraying nozzle (2).